Global Patent Index - EP 3608969 A1

EP 3608969 A1 20200212 - OXYGEN INSERTED SI-LAYERS FOR REDUCED SUBSTRATE DOPANT OUTDIFFUSION IN POWER DEVICES

Title (en)

OXYGEN INSERTED SI-LAYERS FOR REDUCED SUBSTRATE DOPANT OUTDIFFUSION IN POWER DEVICES

Title (de)

SAUERSTOFFANGEREICHERTE SI-SCHICHTEN FÜR REDUZIERTE KONTAKTIMPLANTATAUSDIFFUSION IN STROMVORRICHTUNGEN

Title (fr)

COUCHES SI INSÉRÉES DANS DE L'OXYGÈNE POUR DIFFUSION DE DOPANT DE SUBSTRAT RÉDUITE DANS DES DISPOSITIFS D'ALIMENTATION

Publication

EP 3608969 A1 20200212 (EN)

Application

EP 19189376 A 20190731

Priority

US 201816058593 A 20180808

Abstract (en)

A semiconductor device includes a doped Si base substrate, one or more device epitaxial layers formed over a main surface of the doped Si base substrate, a diffusion barrier structure, and a gate formed above the diffusion barrier structure. The diffusion barrier structure includes alternating layers of Si and oxygen-doped Si formed in an upper part of the doped Si base substrate adjacent the main surface of the doped Si base substrate, in a lower part of the one or more device epitaxial layers adjacent the main surface of the doped Si base substrate, or in one or more additional epitaxial layers disposed between the main surface of the doped Si base substrate and the one or more device epitaxial layers.

IPC 8 full level

H01L 29/32 (2006.01); H01L 21/336 (2006.01); H01L 29/08 (2006.01); H01L 29/739 (2006.01); H01L 29/78 (2006.01)

CPC (source: CN EP KR US)

H01L 21/02164 (2013.01 - KR); H01L 21/02214 (2013.01 - KR); H01L 21/02293 (2013.01 - KR); H01L 21/02304 (2013.01 - KR); H01L 21/02381 (2013.01 - KR); H01L 21/0245 (2013.01 - KR); H01L 21/02532 (2013.01 - US); H01L 21/0257 (2013.01 - KR); H01L 21/02584 (2013.01 - US); H01L 21/2253 (2013.01 - US); H01L 21/7682 (2013.01 - KR); H01L 21/76841 (2013.01 - KR); H01L 21/8249 (2013.01 - CN); H01L 27/0623 (2013.01 - CN); H01L 27/0629 (2013.01 - US); H01L 29/0649 (2013.01 - CN US); H01L 29/0873 (2013.01 - EP); H01L 29/1095 (2013.01 - US); H01L 29/32 (2013.01 - EP); H01L 29/407 (2013.01 - US); H01L 29/41741 (2013.01 - US); H01L 29/4236 (2013.01 - KR); H01L 29/66348 (2013.01 - EP); H01L 29/66553 (2013.01 - US); H01L 29/66712 (2013.01 - EP); H01L 29/66727 (2013.01 - US); H01L 29/66734 (2013.01 - EP US); H01L 29/7391 (2013.01 - CN); H01L 29/7397 (2013.01 - EP); H01L 29/78 (2013.01 - KR); H01L 29/7802 (2013.01 - EP); H01L 29/7804 (2013.01 - EP); H01L 29/7813 (2013.01 - EP US); H01L 29/1095 (2013.01 - EP); H01L 29/404 (2013.01 - EP); H01L 29/407 (2013.01 - EP); H01L 29/41766 (2013.01 - EP); H01L 29/7391 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3608969 A1 20200212; EP 3608969 B1 20220907; CN 110828456 A 20200221; CN 110828456 B 20240726; KR 20200017358 A 20200218; US 10741638 B2 20200811; US 11031466 B2 20210608; US 2020052066 A1 20200213; US 2020303498 A1 20200924

DOCDB simple family (application)

EP 19189376 A 20190731; CN 201910728973 A 20190808; KR 20190095861 A 20190807; US 201816058593 A 20180808; US 202016896593 A 20200609